Broom manufacture and the like



1934- w. H. ZACHRY 1,970,590

BROOM MANUFACTURE AND THE LIKE Filed July 19, 1933 2 Sheets-Sheet l IN VEN TOR.

1A ATTORNEY Aug. 21, 1934. w Y 1,970,590

BROOM MANUFACTURE AND THE LIKE Filed July 19, 1933 2 Sheets-Sheet 2 Patented Au 21, 1934 UNITED s'rArEs swan PATEN if.

13 Claims.

My invention relates to improvements in brooms and the like, and also to an improved process and apparatus for making the same.

Briefly stated, the invention has for its primary object to generally improve the detachable handle fastening structure of the broom or the like, disclosed in the U. 5. Patent No. 15%,499, issued on October 11, 1927 to Charles Malcolm Keene and Walter H. Zachry; and to provide a novel method and apparatus whereby the handlereceiving socket of the broomhead or the like, and the broomhead itself may be formed in one substantially continuous operation.

The invention also contemplates a novel sock- -etforming,,device which may be used as an attachment to a broom winding machine or the like, and which enables an implement-head-carrying and handle-receiving socket to be formed preparatory to the usual mounting of the implement head thereon.

The invention also resides in certain novel features ofconstruction, combination and arrangement of parts, and in methods and modes of operati0n,-to be hereinafter described and claimed,

reference being had to the accompanying drawings illustrating the invention in its now preferred form.

In the drawings,

Figure 1 is an elevational view illustrating my novel implement socket forming device applied to a conventional broom-winding machine;

Figure 2 is a longitudinal sectional view through the socket-forming device;

Figure 3 is an elevational View of the same illustrating a socket blank thereon and the commencement of the threading operation;

Figure 4 shows the completion of the step of forming the threaded socket;

Figure 5 shows the completed broom head, and

portion of socket-forming device removed;

Figure 6 shows the novel handle and broomhead assembled; and,

Figure 7 is an enlarged fragmentary section of the threaded part of the handle showing a part of the socket threads in dotted lines.

Referring specifically to the drawings wherein the same reference characters have been used to designate the same parts in all views, numeral '7 designates generally a broom winding machine which, except as mentioned hereinafter, is of well known construction. Only so much of the machine per se has been shown as is calcu-- lated to assist in understanding my novel attachment.

The broom winding machine comprises a re tangular frame having uprights 7a, 7b, 70. These uprights are connected at their upper ends by. cross members 8 and adjacent their lower ends by cross members 9, one each of which is shown in Figure 1.

Numeral 10 designates a bearing-support which will preferably be carried by a lower cross memher 9 as usual to rotatably mount the conventional reel of any desired construction such as indicated at 11, for the winding wire 12. V

As shown in Figure 1 the wire 12 from the reel 11 passes, as usual, through astaple. or guide 11a, from whence it passes upwardly and is carried, preferably several times around a pulley 13 which is fast on a tensionbar 13a. Tension bar 1304 has the customary tensioning means 132) carried by the upright 7a, and the tension ban 13a will be journalled, or otherwise operatively mounted, in the frame of the machine with the tension bolt or portion 13b serving to resist rota-- 7 tion of the tension bar 13a to which the pulleyis keyed.

From the pulley 13 the wire 12 is carried up wardly and over the guide bar 14a which is carried in the bracket or memberl i which will be secured to one of the top horizontal cross members 8 as shown in Figure l.

Broom winding machines conventionally have a barrel 15 journalled between frame members I, I such as 7b, 7c and provided with a gearor other I drive element 15a, receiving power from a suitable source (not shown). Ordinarily the broom handle is suitably secured in the barrel 15 when winding: the broom head thereupon.

The machine described up to this point is conventional and no novelty is claimed for same, per se. My improvements will now be described.

It is an essential feature of my invention to provide a detachable broom and handle structure and consequently the broom handle according to my invention is not inserted into broom bar-,-

rel 15.

Instead I provide the spindle 16 having the major portion of its tapered forward end 160 provided with raised threads 16a. The spindle 16 is provided with a plurality of laterally spaced i inwardly extending slots 1612- running lengthwise thereof and extending from the outer end of the tapered and threaded portion 160 into the unthreaded untapered spindle portion, as indicated in Figures 1 and 2. V The spindle 16 has a bore 18 extending there- A through and receiving the rod 17 which is provided, adjacent its outer end, with the tapered cone-like wedge portion 17a which, as shown in Figure 2, is adapted to be drawn into the tapered or enlarged bore portion 18a of the spindle for the purpose of spreading outwardly the segments of the tapered forward spindle portion 160 having the threads 16a. The wedge portion 17a terminates in the cylindrical enlargement 171) which is adapted to abut the outer end of tapered spindle portion 160, as illustrated in Figures 1 and 2, to limit inward movement of same.

Figure 2 also illustrates that the spindle l6, rearwardly of the threads 16a, is provided with a cutout, or recess 18b, for receiving the latch element 19. This latch element 19 is pivoted intermediate its ends, as indicated at 20, and has its forward end provided with an upstanding headed stud 19a. This stud 19a has the function of securing the terminal loop 12a of the winding wire, and also of seating the socket blank 30, to which reference will be made later on herein.

The rod 17, as shown in Figure 2, is provided with the seat 170.. When the formation of the broom handle socket from blank 30 is completed and the rod 17 is projected outwardly so as to clear conical wedge 17a from the forward tapered end of the spindle, the seat 170 in rod 17 is adapted to receive and seat both the forward and rear portions of the latch so that the head of stud 19a will be disposed inwardly below the plane of.

the threads 16a to admit of ready removal of the finished socket from the spindle.

As indicated in Figure 2, the; latch 19 has its rear portion constantly engaging the groove or seat 170 in the rod 17 so as to cause it to be rotated with the spindle 16 at all times.

The rod 17 extends rearwardly through the sleeve member 21 which is threaded into the rear end of the spindle 16 as indicated at 2.111 in Figure 2.

Figure 2- also illustrates that the sleeve. exten- -sion 21 of the spindle 16. has the exterior surface recess 23. which is adapted to receive the inner end of the set screw 22, shown in Figure 1 as extending into the barrel 15 adjacent the. forward end thereof for locking the spindle 16 and barrel 15 together.

The wedge-carrying rod 17 has the swivel connection 24 with the co-axial rod 170: extending outwardly beyond the rear end of barrel 15, and pivoted as at 25. to the lever 26, which in turn is pivoted at one end, as at' 27, tov the upper horizontal frame member 8,allv as shown in. Figure 1. The swivel connection has merely been indicated generally. Any well-known swivel can be used. 7

Thus, when the handle 26. is swung outwardly the swivelly connected rods 17m, 17' will be pulled rearwardl'y causing the conical wedge. portion 17a to be drawn. into the tapered end 18a, of the spindle bore 18 to force the segmentsof the threaded and tapered spindle extension outwardly. The shoulder provided by enlargement 17b serves to limit inwardmovement of the wedge 17a and. the rods 17, 1711:.

Theoperation may be summarized as follows:

The socket comprising the blank 30,-incident- 'ly mentionedhereinbefore, has adjacent one corner, -the hole 30a. In carrying out the invention lever 26 is pulled outwardly to position wedge 17a and latch stud 1911 as per Figure 2.. The hole 30a in blank 30 is then engaged with the latch.

stud 19a, as indicated in Figures 3 and 4. Then the. looped end 12a, of the wire 12 is caught wound. around. the stud 19, and the blank 3G is preferably drawn by hand about'the threaded and tapered portion of spindle 16.. When this the socket.

has been done, the barrel 15 will be driven in the usual way. This causes the threads 16a on the spindle 16 to cause the tensioned wire 12 to compress the stock of the soft metal socket blank 30 between the spindle threads 16a so as to progressively form threads 31 in socket 30.

When the threading of the socket has been completed the wire 12 will be given two or three additional turns about the completed socket 30 so as to hold the convolutions of wire 12 in place between socket threads 31. See 1212 in Figure 4.

After the threading of socket 30 has been completed, the inner stiff layer 32 of broom corn will be applied to the socket portion 36 which still remains on the spindle. This broom corn layer 32 is wound onto the lower portion of the socket 30 as indicated at 12c. Next the outer or finer layer 33 of broom corn is applied over the coarse broom corn layer 32 to extend over the upper part of the socket 30, whereupon the winding of layer 33 upon the socket takes place as indicated at 12d in Figure 5. The final phase of the winding operation is the carrying of the wire 12 upwardly from the turns 12d and winding it as at 126 about the upper end of the layer of fine brooom corn 33 to provide the crownor head 33a (see Figure 5) adjacent the upper end of the socket 30. The end of the wire is secured to nail 34 in crown 33a. v

Particular attention is directed to the novel automatic formation of the flange 301) at the upper end of the socket so. This flange 30b serves to overlie and hold the upper end of the broom head or crown 33a and is formed by the windings 12a of the wire 12 upon the stock of socket .30 at the site of the circumferential shoulder 16d, which is provided by cylindrical rear end of spindle 16 at the junction between the same, and the tapered spindle portion 16c rearwardly of the threads 16a...

The stock of socket 30 will initially slightly overlie the shoulder 160 of spindle 16 as indicated in Figures 3 and 4.

The broom handle 40 is diametrically reduced at its lower end portion which providesthe helical tions of threads 42?). and 42d, respectively, on the.

handle are set outwardly of'the intermediate convolutions-42 so as to assure good binding action at each end of the socket 30. The handle threads 42b are preferably disposed upon a diametrically reduced cylindrical surface above the tapered portion of handle end 400.. The upper threads 4217 also, after a fashion, provide a stop or abutment for the socket when the handle is screwed. thereinto. In this way there is a wedging, action that takes place and makes for a tight fit of handle into In other words, a fit is thus obtained which will effectively resist inadvertent relative turning of the handle with. respect to the socket 30 when the broom or implement. is in use.

After the broom head has been wound onto the socket SOthe latter is. removed from the spindle 16,

160., To accomplish this latch head 19d must be largement. 13a and permit the spindle segments 7 that are provided by slots 16b to spring inward to their normal position. This inward movement of rod 17 also positively rocks the stud-carrying end of latch 19 into rod recess 170 to clear stud 19a from the hole 30a (see Figures 1, 3 and ,4) in socket 30. This positive rocking of latch 30 is caused by the rear bottom edge upward bevel 19b of the latch 19 cammingly engaging the shallow rear end of slot or seat 17 as will be plain from Figure 2. The broom head can now he slipped off the spindle and the handle portion 40a screwed thereinto.

Regarding handle 40 particular emphasis is laid upon the raised wire-provided threads 42a and 42d at the inner and outer ends of the'socketrecei'ving handle portion 40d. Threads 421) are substantially in plane with one another and are disposed outwardly of the plane of the threads 42d which are also raised and substantially in plane with each other. This arrangement, aside from helical groove 41 and the fact that 40a may be tapered gives the intermediate wire-defined threads 42 a taper to cause them to conform'to threads 31 in the tapered socket 30., The helical groove 41 and 42 can be dispensed with if desired. When the handle thread wire 42, 42a, etc. is applied, convolutions 42 will be wound tightly into groove 41 as suggested in full lines in Figure '7. Afterwards, however these intermediate convolutions 42 (because of their remoteness to anchor points 42a, 42c) tend. to spring out as per dotted lines to engage socket threads 31.

Having thus described my invention what I claim as newis:

1. The combination with the driven handlereceiving barrel of a broom winding machine or the like and its support; of a spindle secured therein and projecting from one end thereof, said spindle having a tapered threaded portion adjacent one end and having a central lineal bore extending therethrough and flared at its outer end, there being a plurality of slots extending inwardly from the outer end of said threaded and tapered portion to provide spreadable segments, a rod extending through said bore and having a cam on its outer end adapted to spread said segments when the rod'is pulled inwardly, a stop at the outer end of said cam to limit inward movement of the same and rod, and actuating means rotatably connected to said rod and carried by said barrel support.

2. The combination with the driven handlereceiving barrel of a broom winding machine or the like and its support; of a spindle secured therein and projecting from one end thereof, said i inwardly from the outer end of said threaded and tapered portion to provide spreadable segments,

a rod extending through said bore and having a cam on its outer end adapted to spread said segments when the rod is pulled inwardly, a stop at the outer end of said cam to limit inward movement of the same and rod, and lever including actuating means rotatably connected to said rod and carried by said barrel support.

3. The combination with the driven handle ,jreceiving barrel of a broom winding machine or therethrough and flared at its outer end, there being a plurality of slots extending inwardly from the outer end of said threaded portionto provide spreadable segments, a rod extending through said bore and having a cam on its outer end adapted to spread said segments when the rod is pulled-inwardly,'a stop at the outer end of said cam to limit inward movement of the same and rod, and actuating means rotatably connected tosaid rod and carried by said barrel support.

4. The combination with the driven handlereceiving barrel of a broom winding machine or the like and itssupport; of a spindle secured therein and projecting from one end thereof; said spindle having a threaded portion adjacent one end and having a central lineal bore extending therethrough and flared at its outer end, there being a plurality of slots extending inwardly from the outer end of said threaded portion to provide spreadable segments, a rod extending through said bore and having a cam on its outer end adapted to spread said segments when the rod-is pulled inwardly, a stop at the outer end of said cam to limit inward movement of the same and rod, actuating means rotatably connected'to said rod and carried by said barrel-support, a latch pivoted intermediate its ends in saidspindle, an outwardly projecting stud carried adjacent one end of said latch, said rod having a latch receiving and latch rocking surface groove constantly engaging a portion of the latch whereby to key the rod to the spindle, said latch wholly seating in said groove when the cam is disengaged from said spindle bore whereby to dispose said stud inwardly of the plane of said spindle, and said rodrecess and latch cooperatively engaging whereby when the rod is pulled inwardly to cause said "cam.

into segments, a rod in said bore andprojecting from said end, a cam on said end of said rod and adapted to engage in the end of said bore to spread said segments, actuating means for said rod, a

its

blank securing stud movably carried by said spindle for disposition both inwardly and outwardly of the plane of the spindle, and an operative connection between said rod and stud for controlling the position of the latter.

6. A spindle for the purpose specified providing a blank-carrying portion having a lineal bore extending therein from one end and lineal slots extending inwardly from said end in communication with said bore to lineally divide said spindle into segments, a rod in said bore and projecting from said end, a cam on said end of said rod and adapted to engage in the end of said bore to spread said segments, actuating means for said rod, a blank securing stud movably carried by said spindle for disposition both inwardly and outwardly of the plane of the spindle, an operative connection between said rod and stud for controlling the position of the latter, and means carried by said stud for constantly and slidably keying said rod to said spindle.

7. A spindle for the purpose specified providing a blank-carrying portion having a lineal bore extending therein from one end and lineal slots extending inwardly from said end in communication with said bore to lineally divide said spindle into segments, a rod in said bore and projecting from said end, a cam on said end of said rod and'adapted to engage in the end of said b'ore to spread said segmentsactuatingmeans for said rod, a blank securing stud movably carried by said spindle for disposition both inwardly and out wardly of the plane of the spindle, an operative" connection between said rod and stud for controlling the position of the latter, and an exterior circumferential shoulder on the blank carrying portion of said spindle .and'adjacent one'end of thesame; H

8. A spindle 'for the purpose specified'providing ablank-carrying portion having a lineal bore extending therein from one end and lineal slots extending inwardly from said end infcommunicae tion with said bore to'lineally divide said spindle intosegments, a rod in said bore and projecting from said end, a cam on said end of said rod and adapted to engage in the end of said bore to spread said segments, a blank securing means movably' carried by said, spindle for disposition both in-' wardly and outwardly of the surface of the spin-- dle, and an operative connection between said rod-and blank securing-means for controlling the position of the latter.

- 9., A spindle for thepurpose specified providing a blank-carrying portion havinga-lineal bore 'extending therein'from oneend and lineal slots extending inwardly from said end in communication with said bore to-lineally divide said spindle into segments, cammeans movable in said bore andadapted to engage in the end of said bore to spread said segments, ;a blank securing meansmovably carried by said spindleior disposition.- both inwardly and outwardly-of the surface of the spindle, and an operative connection between said rod and blank securing means for controlling the'positionof the latter.

10. A spindle for the purpose specified providing-a blank-carryingportionhaving a lineal-bore extending therein from one end and lineal slots extending. inwardly) from saidend incommuni-. ;cation with said bore tolineallydivide said spindleinto segments, a rod insaid bore and projectingfrom said end, a cam onsaid end of said rod and adapted toengage in the end of said bore to spread said segments, a blank securing stud movably carriedby said spindle for disposition both inwardly and outwardly of 'the'surface of the spindle, an operative connection between said rod and :stud forcontr'olling the position of the latter, and-said connection including means for constantly and'slidably keying said rod to said spindle. 1

"11.. A spindle for the purpose specified providing a blank-carrying portion having a lineal bore extending therein from one end and lineal slots extending inwardly from said end in communi-' cation with said bore to lineally divide said spindleinto segments, cam means movable in said bore to engage in the endof said bore to spread said segments, and blank securing means carried by said spindle and selectively movable by operation of said cam'means to 'a position inwardly and outwardly'of the surface of said spindle.

12. A spindle for the'purpose specified providing a blank-carrying portion having a lineal bore extending therein from one end'and lineal slots extending inwardly from said end in communication withsaid bore to lineally divide said spin-- dle'into segments, and cam means movable in said bore to engage in the end of said bore to spread said segments, blank securing means carried by said spindle and selectively movable to a position inwardly and outwardly of the surface of'said spindle,"and an operative connection between saidcamand blank securing means.

13. A spindle for the purpose specified providing a blank-carrying portion having alineal bore extending therein from one end and lineal slots extending inwardly from said end'in communication with said bore to lineally divide said spindle into segments, cam means movable in said bore adapted to engage in the end of said bore to spread said segments, blank securing means 

